An ORCS Blog

Nov

21

Filed Under (General News) by Mr L on 21-11-2017 and tagged abubakar, Antonina, estimating, inverse, Jacob, maths, pawel, Sinju

Level 1

- I think of a number. I multiply it by 2 and my answer is 24. What was my number?
- I think of a number. I add 16 and my answer is 36. What was my number?
- I think of a number. I subtract 25 and add 2. My answer is 27, what was my number?
- I think of a number. I add 15 and then multiply by 2. My answer is 32, what was my number?
- I think of a number. I divide by 2, add 98 and my answer is 100. What was my number?

Level 2

- I think of a number. I add 15 and multiply by 2. Then I divide by 2 and my answer is 16, what was my number?
- I think of a number. I divide by 2, add 98 and my answer is 100. What was my number?
- I think of a number. I add 50, multiply by 3 and subtract 25. My answer is 275. What was my number?
- I think of a number. I multiply by 20, divide by 10 and subtract 5. The answer is 195. what was my number?
- I think of a number. I double it, add 31, and then subtract 4. My answer is 149, what was my number?

Level 3

- I think of a number. I double it, add 31, and then subtract 4. My answer is 149, what was my number?
- I think of a number, I multiply it by 2, and then add 9. The answer is 20. What was my number?
- I think of a number, I divide by 4, add 1.5 and then double it. My answer is 23. what was the number?
- I think of a number, I multiply by itself, subtract 44, add 10 and my answer is 110. What was the number?
- I think of a number, I subtract 35, add 5 and then multiply by 1. My answer is 0. What was the number?

Level 4

Your ULTIMATE challenge – For each of the calculations you have done, you now need to write these out as calculations.

Eg. I think of a number. I multiply it by 2 and my answer is 24. What was my number?

N x 2 = 24

YOU CAN DO IT!!!

November 21st, 2017 at 12:20 pm

Level 1

1. 12

2. 20

3. 50

4. 1

5. 2

Level 2

1. 1

2. 20

November 21st, 2017 at 12:29 pm

LEVEL 2

1. 1

2. 99

3.135

November 21st, 2017 at 12:29 pm

Level 1

1. 12

2. 20

3.50

4.1

5.2

Level 2

1.1

2.2

November 21st, 2017 at 12:29 pm

Level 2

2. 2

3.

November 21st, 2017 at 12:29 pm

Level 1

1.12

2.20

3.50

4.1

5.2

Level 2

1.1

2.2

November 21st, 2017 at 12:29 pm

LEVEL 1

1. 12

2.20

3.50

4.16

5.4

LEVEL 2